US4902159A - Joint connection for frame structures - Google Patents

Joint connection for frame structures Download PDF

Info

Publication number
US4902159A
US4902159A US07/002,901 US290187A US4902159A US 4902159 A US4902159 A US 4902159A US 290187 A US290187 A US 290187A US 4902159 A US4902159 A US 4902159A
Authority
US
United States
Prior art keywords
casing
joint
members
openings
inner walls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/002,901
Inventor
Erich Frantl
Peter Hofstatter
Willibald Zemler
Albert P. Raunicher
Werner Frantl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIPL-ING MANFRED BEER BOZNERGASSE 10 A-2340 MODLING (NO) AUSTRIA
Original Assignee
DIPL-ING MANFRED BEER BOZNERGASSE 10 A-2340 MODLING (NO) AUSTRIA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DIPL-ING MANFRED BEER BOZNERGASSE 10 A-2340 MODLING (NO) AUSTRIA filed Critical DIPL-ING MANFRED BEER BOZNERGASSE 10 A-2340 MODLING (NO) AUSTRIA
Assigned to DIPL.-ING. MANFRED BEER, BOZNERGASSE 10, A-2340 MODLING (N.O.) AUSTRIA reassignment DIPL.-ING. MANFRED BEER, BOZNERGASSE 10, A-2340 MODLING (N.O.) AUSTRIA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FRANTI, ERICH, FRANTL, WERNER, HOFSTATTER, PETER, RAUNICHER, ALBERT P., ZEMLER, WILLIBALD
Application granted granted Critical
Publication of US4902159A publication Critical patent/US4902159A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1933—Struts specially adapted therefor of polygonal, e.g. square, cross section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/196—Screw connections with axis parallel to the main axis of the strut
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/1972—Welded or glued connection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/34—Branched
    • Y10T403/341—Three or more radiating members
    • Y10T403/342—Polyhedral
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/44—Three or more members connected at single locus
    • Y10T403/443—All encompassed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/47—Molded joint
    • Y10T403/473—Socket or open cup for bonding material

Definitions

  • the invention relates to a joint for framed structures with more than two bars connected at the joint. More particularly, the invention relates to a joint wherein the more than two bars are inserted through apertures into a metal casing adapted to be filled with a hardening grout, wherein the end portions of the bars form a positive connection in the metal casing and wherein, if necessary, the end portions are reshaped, more particularly necked down.
  • the major object of the invention is to provide a joint of the type referred above which will be adequate for smaller joints.
  • the projections stellatedly extend from a convex central portion of the metal casing, which portion preferably has a substantially spherical or flattened spherical form.
  • the projections tapering outwardly from the apertures in the metal casing are comprised of a series of hollow portion or hollow elements that increase in cross section with decreasing distance from the apertures and that are securely attached to each other and to the convex central portion of the metal casing, or are formed in one piece therewith.
  • FIG. 1 is an elevated front view in partial cross-section along the axis of one of the bars in the joint according to the present invention.
  • FIGS. 2 through 4 are cross-sectional views taken along line II--II of FIG. 1 of various embodiments of the joint of the present invention.
  • a joint according to a preferred embodiment of the present invention is comprised of a metal casing 1 having a convex central portion substantially in the form of a flattened sphere. Protruding stellatedly from the central portion, projections 3 have inner walls 9 which taper in step-wise fashion from aperture 2 in the metal casing.
  • an aperture 2 receiving a bar 4 in the form of a tube with a square cross section and another aperture 2 receiving a bar 4 in the form of a tube with a circular cross section.
  • One advantage of the joint connection according to the invention is in that the bars 4 are not required to have the same cross section. For example, diagonal members could be made thinner chord members.
  • FIG. 1 In the left portion of FIG. 1 are shown, linked by the joint, two bars, the axis of which lies in the plane of the drawing.
  • a filling filling material in the metal casing 1 is shown in the upper part of the left half of FIG. 1. This filling material is not shown in the lower part of the left half of FIG. 1 and also the end portion of the bar 4 is not shown in cross section therein.
  • bars 4 have a necked down end portion that forms a positive connection in the metal casing. It can be seen from the cross-sectional views of the necked-down end portions of bars 4 in FIGS. 2 to 4 that the neck is formed by folding the tube wall without thinning or altering its cross-sectional area.
  • each necked-down end portion of bars 4 two inserted members 5 and 6 are mounted in opposing sections of the neck and oriented therein with their tapering portions facing in opposition.
  • the neck is adapted to the shape of the inserted members 5, 6.
  • a tensioning member 7 in the form of a high-strength bolt or a plurality of such bolts (FIG. 4) located in the tube axis, the two inserted members 5, 6 are urged together longitudinally within the end portion of each the bar 4 such that the members 5, 6 come into flatwise abutting engagement with the inside walls of the tubes in opposite sections of the neck.
  • a filling aperture 8 is provided for filling the casing with hardening grout.
  • projections 3 are shown as integrally formed with the metal casing 1.
  • Each projection 3 is formed from a series of hollow portions which, as seen from FIG. 1, decrease in cross-section with increasing distance from casing 1 so that their inner walls 9 taper in step-like fahshion from the casing.
  • projections 3 could be formed from a plurality of hollow elements which are attached to each other and the outer surface of the metal casing 1.
  • the end portions of the bars 4 are received within the metal casing 1 and form positive connections with the hardened grout.
  • the grout is confined by the casing 1.
  • tensile forces, acting on bars 4 and their positively-connected end portions are transmitted to the metal casing 1 as if the entire casing had a radius equalling at least the extension of the bars therewithin.
  • the tensile forces are transmitted to the casing by a pressure cone which develops in the hardened grout.
  • the bars 4 directly transmit compression forces, acting thereon, to the hardened grout.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Seal Device For Vehicle (AREA)
  • Scissors And Nippers (AREA)
  • Picture Signal Circuits (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Body Structure For Vehicles (AREA)
  • Fishing Rods (AREA)

Abstract

A joint having a plurality of bars inserted through apertures into a metal casing adapted to be filled with a grout is disclosed. The casing has projecting members that taper in stepwise fashion from an enlarged portion covering the apertures.

Description

BACKGROUND OF THE INVENTION
The invention relates to a joint for framed structures with more than two bars connected at the joint. More particularly, the invention relates to a joint wherein the more than two bars are inserted through apertures into a metal casing adapted to be filled with a hardening grout, wherein the end portions of the bars form a positive connection in the metal casing and wherein, if necessary, the end portions are reshaped, more particularly necked down.
In joints known from the prior art as exemplified in British Patent 271,709, a relatively large metal casing is necessary to provide for absorbtion of the tensile forces acting on the bars. Where the outside surface of the metal casing is shaped, for example, as a sphere or similar convex case, the radius of the casing must at least equal the extent to which the bars are inserted into the metal casing. The bulky joints required are not only offensive to view, they also cause problems when being filled with grout. A correspondingly large quantity of expensive grout is needed, the weight of which plays a considerable role in relatively large framed structures and the cost of which increases the total cost of the structures. The same problems exist in the case of a joint such as disclosed in Austrian Patent 339,094.
SUMMARY OF THE INVENTION
The major object of the invention is to provide a joint of the type referred above which will be adequate for smaller joints.
This object is achieved with a joint of the type mentioned above by providing the metal casing with tapering projections. Consequently, only small portions of the metal casing are required to project outwardly as determined by the extent of insertion of the bars into the metal casing such portions include the projections located at the apertures. All portions of the metal casing that are removed from its apertures can have much smaller outer dimensions.
According to the invention, provision can be made for the projections of the metal casing to taper in stepwise fashion.
In one embodiment of the invention, the projections stellatedly extend from a convex central portion of the metal casing, which portion preferably has a substantially spherical or flattened spherical form. The projections tapering outwardly from the apertures in the metal casing are comprised of a series of hollow portion or hollow elements that increase in cross section with decreasing distance from the apertures and that are securely attached to each other and to the convex central portion of the metal casing, or are formed in one piece therewith. As a result, tensile forces acting on the bars and their positive-connection-forming end portions can be transmitted to the metal casing by a pressure cone developing in a hardened grout extactly as if radial entire metal casing had the dimensions equalling the outward extension of the projections. The hollow portions of the step-like projections absorb the tensile forces from one step to the next. The compressive forces acting on the bars are transmitted directly into the hardened grout by the closed ends of the bars. The grout is anchored internally by the ends of the other bars and the metal casing.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be explained in greater detail with reference to the drawings in which the parts bear like reference numerals. In the drawings:
FIG. 1 is an elevated front view in partial cross-section along the axis of one of the bars in the joint according to the present invention; and
FIGS. 2 through 4 are cross-sectional views taken along line II--II of FIG. 1 of various embodiments of the joint of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A joint according to a preferred embodiment of the present invention is comprised of a metal casing 1 having a convex central portion substantially in the form of a flattened sphere. Protruding stellatedly from the central portion, projections 3 have inner walls 9 which taper in step-wise fashion from aperture 2 in the metal casing.
In the right portion of FIG. 1 (not shown in cross section) is indicated an aperture 2 receiving a bar 4 in the form of a tube with a square cross section and another aperture 2 receiving a bar 4 in the form of a tube with a circular cross section. One advantage of the joint connection according to the invention is in that the bars 4 are not required to have the same cross section. For example, diagonal members could be made thinner chord members.
In the left portion of FIG. 1 are shown, linked by the joint, two bars, the axis of which lies in the plane of the drawing. A filling filling material in the metal casing 1 is shown in the upper part of the left half of FIG. 1. This filling material is not shown in the lower part of the left half of FIG. 1 and also the end portion of the bar 4 is not shown in cross section therein.
It is apparent that bars 4 have a necked down end portion that forms a positive connection in the metal casing. It can be seen from the cross-sectional views of the necked-down end portions of bars 4 in FIGS. 2 to 4 that the neck is formed by folding the tube wall without thinning or altering its cross-sectional area.
In each necked-down end portion of bars 4, two inserted members 5 and 6 are mounted in opposing sections of the neck and oriented therein with their tapering portions facing in opposition. The neck is adapted to the shape of the inserted members 5, 6. By means of a tensioning member 7 in the form of a high-strength bolt or a plurality of such bolts (FIG. 4) located in the tube axis, the two inserted members 5, 6 are urged together longitudinally within the end portion of each the bar 4 such that the members 5, 6 come into flatwise abutting engagement with the inside walls of the tubes in opposite sections of the neck.
On the top side of the metal casing 1, a filling aperture 8 is provided for filling the casing with hardening grout.
In FIG. 1, particularly the left half thereof, projections 3 are shown as integrally formed with the metal casing 1. Each projection 3 is formed from a series of hollow portions which, as seen from FIG. 1, decrease in cross-section with increasing distance from casing 1 so that their inner walls 9 taper in step-like fahshion from the casing. Alternatively, projections 3 could be formed from a plurality of hollow elements which are attached to each other and the outer surface of the metal casing 1.
The end portions of the bars 4 are received within the metal casing 1 and form positive connections with the hardened grout. The grout is confined by the casing 1. As a result, tensile forces, acting on bars 4 and their positively-connected end portions, are transmitted to the metal casing 1 as if the entire casing had a radius equalling at least the extension of the bars therewithin. The tensile forces are transmitted to the casing by a pressure cone which develops in the hardened grout. The bars 4 directly transmit compression forces, acting thereon, to the hardened grout.
Only portions of the casing 1, namely projections 3, are required to project outwardly a distance at least equalling the inward extension of bars 3 to within the casing. Portions of the casing 1 which are remote from the bar-receiving apertures 2 can have much smaller dimensions. Thus, the size of the resulting joint according to the present invention is greatly reduced.

Claims (6)

We claim:
1. A joint for frame structures, said joint comprising:
a metal casing having a plurality of openings therein, said plurality comprising at least three openings;
a corresponding plurality of tubular projecting members, each of said members being affixed to said casing in axial alignment over an associated one of said openings, said projecting members having outer walls and inner walls, said inner walls tapering in step-wise fashion from an enlarged portion affixed to said casing to a narrow portion remote from said casing; and
at least three elongate members, each having an end portion which extends through an associated projecting member and opening to within the interior of said casing, said end portions each comprising a crimped portion, said casing being adapted to be filled with a hardenable grout for providing a positive connection for said end portions received in said casing.
2. A joint as claimed in claim 1, wherein said casing is substantially spherical and said projections extend stellatedly from the surface of said casing.
3. A joint as claimed in claim 1, wherein said casing has a flattened spherical shape and said projections extend stellatedly from the surface of said casing.
4. A joint as claimed in claim 1, wherein said inner walls comprise a plurality of steps.
5. Means for connecting at least three elongate members to form a joint for frame structures, said means comprising:
a substantially spherical metal casing having at least three openings therein; and
a plurality of tubular, hollow members corresponding to the number of openings in said casing, each of said hollow members being affixed to said casing in axial alignment over an associated one of said openings, each of said members having outer walls and inner walls, said inner walls tapering in step-wise fashion from an enlarged portion affixed to said casing to a narrow portion remote from said casing, said tubular, hollow members projecting stellatedly from said casing.
6. A joint as claimed in claim 5, wherein said inner walls comprise a plurality of steps.
US07/002,901 1986-01-14 1987-01-13 Joint connection for frame structures Expired - Fee Related US4902159A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0006786A AT383842B (en) 1986-01-14 1986-01-14 NODE CONNECTION FOR RODWORKS
AT67/86 1986-01-14

Publications (1)

Publication Number Publication Date
US4902159A true US4902159A (en) 1990-02-20

Family

ID=3480648

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/002,901 Expired - Fee Related US4902159A (en) 1986-01-14 1987-01-13 Joint connection for frame structures

Country Status (8)

Country Link
US (1) US4902159A (en)
EP (1) EP0229605B1 (en)
AT (2) AT383842B (en)
CA (1) CA1284572C (en)
DE (1) DE3671770D1 (en)
ES (1) ES2015271B3 (en)
GR (1) GR3000531T3 (en)
ZA (1) ZA869703B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814313A1 (en) * 1998-03-31 1999-10-07 Volkswagen Ag Node connection for profiles
EP2631378A1 (en) * 2010-10-21 2013-08-28 Europea de Construcciones Metalicas, S.A. Direct connection between a tube and a flat element
US20190055729A1 (en) * 2017-08-15 2019-02-21 Jon Dietz Unitary hubs for domes or spheres

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US639948A (en) * 1899-08-12 1899-12-26 August Sundh Junction-box or other coupling for casings for electric cables or wires.
CH255891A (en) * 1947-02-14 1948-07-31 Roten J A Dowel screw.
DE1781162A1 (en) * 1967-09-01 1971-07-15 Ingbureaumarcon N V Connection structure for the struts of a truss construction
US3914060A (en) * 1972-12-07 1975-10-21 Mannesmann Roehren Werke Ag Connecting structure for frames, scaffolds, lattice structure or the like
US4011020A (en) * 1974-02-20 1977-03-08 Erich Frantl Transfer joint for rigid frames
US4127741A (en) * 1976-03-31 1978-11-28 Rosenthal Technik Ag Arrangement for elastically clamping glass fibre rods
US4194851A (en) * 1977-11-10 1980-03-25 Polyproducts Corp. Universal hub for geodesic domes
US4591286A (en) * 1984-03-02 1986-05-27 Galan Inchaurbe Jose M J Spacial structure
US4776721A (en) * 1985-09-13 1988-10-11 Interlock Structures International, Inc. Connecting apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US639948A (en) * 1899-08-12 1899-12-26 August Sundh Junction-box or other coupling for casings for electric cables or wires.
CH255891A (en) * 1947-02-14 1948-07-31 Roten J A Dowel screw.
DE1781162A1 (en) * 1967-09-01 1971-07-15 Ingbureaumarcon N V Connection structure for the struts of a truss construction
US3914060A (en) * 1972-12-07 1975-10-21 Mannesmann Roehren Werke Ag Connecting structure for frames, scaffolds, lattice structure or the like
US4011020A (en) * 1974-02-20 1977-03-08 Erich Frantl Transfer joint for rigid frames
US4127741A (en) * 1976-03-31 1978-11-28 Rosenthal Technik Ag Arrangement for elastically clamping glass fibre rods
US4194851A (en) * 1977-11-10 1980-03-25 Polyproducts Corp. Universal hub for geodesic domes
US4591286A (en) * 1984-03-02 1986-05-27 Galan Inchaurbe Jose M J Spacial structure
US4776721A (en) * 1985-09-13 1988-10-11 Interlock Structures International, Inc. Connecting apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19814313A1 (en) * 1998-03-31 1999-10-07 Volkswagen Ag Node connection for profiles
EP2631378A1 (en) * 2010-10-21 2013-08-28 Europea de Construcciones Metalicas, S.A. Direct connection between a tube and a flat element
EP2631378A4 (en) * 2010-10-21 2014-08-13 Europ De Construcciones Metalicas S A DIRECT CONNECTION BETWEEN A TUBE AND A FLAT ELEMENT
US9291185B2 (en) 2010-10-21 2016-03-22 Europea De Construcciones Metalicas, S.A. Direct connection between a tube and a flat element
US20190055729A1 (en) * 2017-08-15 2019-02-21 Jon Dietz Unitary hubs for domes or spheres

Also Published As

Publication number Publication date
ES2015271B3 (en) 1990-08-16
GR3000531T3 (en) 1991-07-31
EP0229605A1 (en) 1987-07-22
CA1284572C (en) 1991-06-04
ATA6786A (en) 1987-01-15
EP0229605B1 (en) 1990-06-06
AT383842B (en) 1987-08-25
ATE53417T1 (en) 1990-06-15
ZA869703B (en) 1987-08-26
DE3671770D1 (en) 1990-07-12

Similar Documents

Publication Publication Date Title
US3532369A (en) Corner construction and method of connecting rectangular frame members together
US4467583A (en) Reinforcement basket for reinforced-concrete column
HU224183B1 (en) Building system comprising individual building elements
US4322176A (en) Tubular beam joint
US4902159A (en) Joint connection for frame structures
US4109438A (en) Reinforced separable sectional hermetic protective covering
HU188619B (en) Transporting anchor for finished concrete members
US4162860A (en) Flange-screw connection for rods in three-dimensional frameworks
US4335556A (en) Frame girder for underground drift and shaft construction
KR102341669B1 (en) Rebar connector to induce plastic deformation
CN1079472C (en) Nodal connector of pole and beam
CA1284265C (en) Joint connection
KR102062152B1 (en) One-touch Coupler for Connecting Reinforcing Rods
CN100425487C (en) Cableway cabin
US4674256A (en) Members for load-carrying spatial structure
SK40694A3 (en) Anchor rail for construction engineering
JPH02210199A (en) Rock bolt or ground anchor
EP1865209A1 (en) Node for reticulated structures
EP0238613B1 (en) A spring element, and a method of manufacturing said element
EP1225101A1 (en) Collapsible tube for car door handles
KR200251650Y1 (en) connection unit and frame structure employing the same
CA2140196A1 (en) Mechanical connection for reinforcing bars, device for placing this mechanical connection and process for fixing the mechanical connection for reinforcing bars
US3500956A (en) Ladder constructions
GB2264863A (en) Umbrella rib reinforcement
KR920000956Y1 (en) Constructure connecting hollow pipes

Legal Events

Date Code Title Description
AS Assignment

Owner name: DIPL.-ING. MANFRED BEER, BOZNERGASSE 10, A-2340 MO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:FRANTI, ERICH;HOFSTATTER, PETER;ZEMLER, WILLIBALD;AND OTHERS;REEL/FRAME:004717/0960

Effective date: 19870508

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 19930220

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362